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15238 Hisaohori (1989 CQ)
Classification: Main-belt Asteroid          SPK-ID: 2015238
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07665047112162957 4.1781e-08  
a 2.283935729188149 6.5394e-09 au
q 2.108870979534355 9.6072e-08 au
i 3.882143147589622 3.681e-06 deg
node 43.69141589322787 5.775e-05 deg
peri 137.3936340666145 6.1392e-05 deg
M 334.6495242240235 2.084e-05 deg
tp 2459089.278511353720
(2020-Aug-27.77851135)
7.3029e-05 TDB
period 1260.736262694776
3.45
5.4147e-06
1.482e-08
d
yr
n .2855474302218559 1.2264e-09 deg/d
Q 2.459000478841943 7.0407e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      11406 days (31.23 yr)  
   first obs. used      1989-02-02  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51865  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:09:00  

Additional Information
 Earth MOID = 1.11282 au 
 Jupiter MOID = 2.49863 au 
 T_jup = 3.596 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO452386  
diameter diameter 2.674 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.357   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15238 Hisaohori           Discovered 1989 Feb. 2 by T. Seki at Geisei.
Hisao Hori (b. 1968) was born in Niihama City, Ehime prefecture, He is an amateur astronomer and member of Shikoku Astronomical Society. He works for Anan Science Center and observes with its 1.13-meter reflector.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20101128/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1989 CQ = 1998 XH64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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